Cocktail shaker



FIG. 1 is a top-side perspective view of a cocktail shaker, showing thenew design;

FIG. 2 is a bottom-side perspective view thereof;

FIG. 3 is a front view thereof, the back view being a mirror imagethereof; and,

FIG. 4 is a top view thereof.

The broken lines in the drawings depict portions of the cocktail shakerthat form no part of the claimed design.

CLAIM The ornamental design for a cocktail shaker, as shown anddescribed.